Meriam, Kraige & Bolton — Kinematics of Particles: Problem 2_167

2/167 For the conditions of Prob. 2/166, determine the values of \(\ddot{r}\) and \(\ddot{\theta}\) as measured by an observer in car B at the instant represented. Use the results for \(\dot{r}\) and \(\dot{\theta}\) cited in the answers for that problem. [From Prob. 2/166: Car A is traveling at the constant speed of \(60 \text{ km/h}\) as it rounds the circular curve of \(300\text{-m}\) radius and at the instant represented is at the position \(\theta = 45^\circ\). Car B is traveling at the constant speed of \(80 \text{ km/h}\) and passes the center of the circle at this same instant. Car A is located with respect to car B by polar coordinates \(r\) and \(\theta\) with the pole moving with B.]